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desert lupine, purple desert lupine, Shockley lupine

northern lupine, Plumas lupine

Habit Herbs, annual, 0.4–3 dm, canescent, hairs 0.6–1 mm. Herbs, perennial, 2–3 dm, green, silky; rhizomatous, from slender underground rootstock.
Stems

erect or ascending, very short, tufted or spreading, branched.

short-decumbent, clustered, unbranched.

Leaves

cauline, crowded near base;

stipules well developed;

petiole 2–9 cm;

leaflets 7–11, blades 10–30 × 4–10 mm, adaxial surface glabrous.

cauline, clustered near base;

stipules 8–10 mm;

petiole (5–)8–13 cm;

leaflets 5–9, blades oblanceolate, 15–50 × 4–10 mm, abaxial surface silky-hairy, adaxial surface glabrous.

Racemes

several–many-flowered, 3–14 cm;

flowers spirally arranged.

5–15 cm;

flowers not whorled.

Peduncles

1–10 cm;

bracts persistent, straight, 2–4 mm.

4–8 cm;

bracts deciduous, 3–4 mm.

Pedicels

1–4 mm.

3–5 mm.

Flowers

4.5–7 mm;

calyx 3–6 mm, lobes ± equal, abaxial lobe entire, adaxial lobe cleft;

corolla dark blue-purple or whitish with blue tip, banner spot white becoming yellow, keel blunt, glabrous.

8–11 mm;

calyx bulge or spur 0–1 mm, abaxial lobe entire, 3.5–6 mm, adaxial lobe 2-toothed, 2–5 mm;

corolla violet, banner glabrous abaxially, lower keel margins glabrous, adaxial margin ciliate.

Legumes

undulate, 1.5–2 cm, not constricted between seeds, ciliate with long, dense hairs, sides with short, inflated hairs becoming scaly on drying.

3–4.5 cm, hairy.

Cotyledons

persistent, disclike, sessile.

deciduous, petiolate.

Seeds

2, wrinkled.

5 or 6, brown, 6–7 mm.

Lupinus shockleyi

Lupinus onustus

Phenology Flowering spring (Apr–Jun). Flowering Apr–Sep.
Habitat Dunes, sandy areas, washes, playas. Dry banks, yellow pine forests, serpentine soils.
Elevation 0–1500 m. (0–4900 ft.) 500–2000 m. (1600–6600 ft.)
Distribution
from FNA
AZ; CA; NV
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
Discussion

Lupinus shockleyi occurs in the desert areas of southern California, adjacent areas of southern Nevada, and northwestern Arizona.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Lupinus onustus is known in California from the southern Cascade Range, Klamath Ranges, and northern Sierra Nevada, to the Siskiyou Mountains of southwestern Oregon.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Lupinus Fabaceae > subfam. Faboideae > Lupinus
Sibling taxa
L. adsurgens, L. affinis, L. albicaulis, L. albifrons, L. andersonii, L. angustiflorus, L. antoninus, L. apertus, L. arboreus, L. arbustus, L. arcticus, L. argenteus, L. arizonicus, L. benthamii, L. bicolor, L. brevicaulis, L. breweri, L. cervinus, L. chamissonis, L. citrinus, L. concinnus, L. constancei, L. covillei, L. croceus, L. dalesiae, L. diffusus, L. duranii, L. elatus, L. elmeri, L. excubitus, L. flavoculatus, L. formosus, L. fulcratus, L. gracilentus, L. grayi, L. guadalupensis, L. havardii, L. hirsutissimus, L. huachucanus, L. hyacinthinus, L. kingii, L. kuschei, L. lapidicola, L. latifolius, L. lepidus, L. leucophyllus, L. littoralis, L. longifolius, L. ludovicianus, L. luteolus, L. magnificus, L. malacophyllus, L. microcarpus, L. nanus, L. neomexicanus, L. nevadensis, L. nipomensis, L. nootkatensis, L. obtusilobus, L. odoratus, L. onustus, L. oreganus, L. pachylobus, L. padrecrowleyi, L. peirsonii, L. perennis, L. polyphyllus, L. pratensis, L. pusillus, L. rivularis, L. sabineanus, L. sericatus, L. sericeus, L. sierrae-blancae, L. sparsiflorus, L. spectabilis, L. stiversii, L. subcarnosus, L. succulentus, L. sulphureus, L. texensis, L. tidestromii, L. tracyi, L. truncatus, L. uncialis, L. villosus, L. westianus
L. adsurgens, L. affinis, L. albicaulis, L. albifrons, L. andersonii, L. angustiflorus, L. antoninus, L. apertus, L. arboreus, L. arbustus, L. arcticus, L. argenteus, L. arizonicus, L. benthamii, L. bicolor, L. brevicaulis, L. breweri, L. cervinus, L. chamissonis, L. citrinus, L. concinnus, L. constancei, L. covillei, L. croceus, L. dalesiae, L. diffusus, L. duranii, L. elatus, L. elmeri, L. excubitus, L. flavoculatus, L. formosus, L. fulcratus, L. gracilentus, L. grayi, L. guadalupensis, L. havardii, L. hirsutissimus, L. huachucanus, L. hyacinthinus, L. kingii, L. kuschei, L. lapidicola, L. latifolius, L. lepidus, L. leucophyllus, L. littoralis, L. longifolius, L. ludovicianus, L. luteolus, L. magnificus, L. malacophyllus, L. microcarpus, L. nanus, L. neomexicanus, L. nevadensis, L. nipomensis, L. nootkatensis, L. obtusilobus, L. odoratus, L. oreganus, L. pachylobus, L. padrecrowleyi, L. peirsonii, L. perennis, L. polyphyllus, L. pratensis, L. pusillus, L. rivularis, L. sabineanus, L. sericatus, L. sericeus, L. shockleyi, L. sierrae-blancae, L. sparsiflorus, L. spectabilis, L. stiversii, L. subcarnosus, L. succulentus, L. sulphureus, L. texensis, L. tidestromii, L. tracyi, L. truncatus, L. uncialis, L. villosus, L. westianus
Synonyms L. alilatissimus, L. mucronulatus, L. oreganus var. pusillulus, L. pinetorum, L. sulphureus subsp. delnortensis, L. thompsonianus, L. violaceus
Name authority S. Watson: Proc. Amer. Acad. Arts 22: 470. (1887) S. Watson: Proc. Amer. Acad. Arts 11: 127. (1876)
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